US8834153B2 - Flame arrester arrangement - Google Patents

Flame arrester arrangement Download PDF

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Publication number
US8834153B2
US8834153B2 US12/793,765 US79376510A US8834153B2 US 8834153 B2 US8834153 B2 US 8834153B2 US 79376510 A US79376510 A US 79376510A US 8834153 B2 US8834153 B2 US 8834153B2
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Prior art keywords
flame arrester
inserts
arrangement according
separate closed
insert
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US12/793,765
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US20100311001A1 (en
Inventor
Frank Helmsen
Christoph Leinemann
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PROTEGO (USA)
Protego (USA) Inc
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Protego (USA) Inc
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Assigned to LEINEMANN GMBH & CO. KG reassignment LEINEMANN GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Helmsen, Frank, LEINEMANN, CHRISTOPH
Publication of US20100311001A1 publication Critical patent/US20100311001A1/en
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Assigned to PROTEGO (USA), INC. reassignment PROTEGO (USA), INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEINEMANN GMBH & CO., LEINEMANN GMBH & CO. KG
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B01J2219/00259—Preventing runaway of the chemical reaction
    • B01J2219/00265—Preventing flame propagation

Definitions

  • the invention relates to a flame arrester arrangement having a housing for holding at least two flame arrester inserts having a large number of axial passage gaps dimensioned for a combustible gas, and having an intermediate layer arranged between two flame arrester inserts, which permits a radial distribution of the gas flow emerging from one flame arrester insert and entering an adjacent downstream flame arrester insert.
  • the flame arrester inserts of these flame arrester arrangements are predominantly produced in a winding process using thin stainless steel strips.
  • a smooth metal strip is wound up together with a uniformly corrugated metal strip and the two thus form turns of a preferably disc-like arrangement.
  • the passage gaps result from the corrugated metal strip resting on the two adjacent smooth metal strips, so that defined passage gaps are produced.
  • the passage gaps given a predefined axial length, must not exceed a predefined cross-sectional surface area.
  • the turns are preferably arranged such that they lie on one another spirally, but also, in the form of closed circular turns, can each comprise a smooth metal strip and a corrugated metal strip.
  • the passage gaps are not aligned with one another accurately, so that the flame arrester inserts lying on one another form resultant channels of which the effective passage gaps are reduced in size in an undefined way as compared with the passage gaps of a flame arrester insert, since the free cross-sectional surface area of the assembly of flame arrester inserts lying on one another is reduced. As a result, the pressure loss during the flow through is increased sharply.
  • the intermediate layers provided in the flame arrester arrangement of the generic type thus serve as spacer elements, which prevent a reduction in the free cross-sectional surface area of the flame arrester inserts lying one behind another.
  • the housing of the flame arrester arrangement forms an enclosing cage having a closed shell wall. Since the gas can expand in the radial direction between the flame arrester inserts, care must be taken that the gaps produced between the edge of the flame arrester inserts and the inner wall of the enclosing cage are smaller than the gaps in the flame arrester inserts themselves. Otherwise, there would be a diversionary path around the flame arrester insert, on which the gas is not cooled in the manner provided by the respective flame arrester insert, so that a flashback through the flame arrester arrangement possibly occurs, which means that a catastrophe can be triggered if, for example, an explosion progresses into a gas storage tank which is intended to be protected by the flame arrester arrangement.
  • a gap that is as large as possible between the flame arrester insert and the enclosing cage is expedient. However, it is necessary to prevent the flame from the gas flow from flowing around one or more flame arrester inserts via the radially outer gap and thus rendering the flame arrester useless.
  • radially outer supporting rings can bear directly axially on the outside of the flame arrester inserts, so that a radially outer flow around the latter by the gas running through the flame arrester arrangement is not possible.
  • an enclosing cage having stepped walls, in which each flame arrester insert bears in a sealing manner on the metal of the enclosing cage.
  • Such an enclosing cage is very expensive to produce and cannot be mass-produced, since different models and diameters are necessary, depending on the number of flame arrester elements.
  • the flame arrester inserts have to be produced in different sizes.
  • the invention is therefore based on the object of designing a flame arrester arrangement of the type mentioned at the beginning in such a way that the assembly and disassembly of the flame arrester inserts is made easier, in particular when three or more flame arrester inserts are used, and an unintended flow around the flame arrester inserts is reliably avoided.
  • a flame arrester arrangement of the type mentioned at the beginning is characterized in that at least one separate closed seal is arranged between a flame arrester insert and the housing or between two flame arrester inserts in such a way that a flow around the flame arrester insert in a space located radially outside the passage gaps is prevented.
  • the flame arrester arrangement according to the invention can thus have an arbitrarily large space radially outside the passage gaps of the flame arrester inserts, so that simple assembly and disassembly of the flame arrester inserts is possible.
  • the interspace between the housing and the flame arrester insert for an axial through flow can be closed by the seal.
  • the seals provided radially outside the flame arrester inserts to adjoin one another axially without any gaps, so that they are clamped in between axially clamped housing parts and thus effect radial sealing against the flow of the gas out of the intermediate layers.
  • the seals are formed by turns of a smooth metal strip wound spirally on one another, so that the seal can be fitted following the production of the flame arrester insert, preferably by the winding technique.
  • the smooth metal strip used for the production of the seal can have the width of the metal strip of the flame arrester insert or can have a greater width (axial length with respect to the flame arrester arrangement), which corresponds to the joint axial length of flame arrester insert and intermediate layer. If the width of the metal strip for the wound seal is equal to the width of the metal strips for the production of the flame arrester insert, an intermediate ring is expediently inserted in the intermediate layer between the wound seals, so that, in the axial direction, the wound seals and the intermediate rings form a length which corresponds to the length of the flame arrester inserts with their intermediate layers.
  • a closed seal can be arranged between the radial edges of the flame arrester inserts, so that sealing radially towards the outside is carried out between the flame arrester inserts.
  • the intermediate layer is preferably designed to be smaller by the radial width of the closed seal, so that the intermediate layer can be inserted between the flame arrester inserts and the closed sealing ring located between the latter.
  • An advantageous refinement of the flame arrester arrangement according to the invention is achieved with flame arrester inserts which are provided radially outside the passage gaps with a circumferential solid edge, the edges being clamped as a stack between the housing parts, which are clamped axially against one another.
  • the sealing radially towards the outside is thus carried out by the solid edges of the flame arrester inserts resting on one another and clamped against one another.
  • Annular seals can also be inserted between the edges, and can then make axial clamping of the edges of the flame arrester inserts unnecessary.
  • the flame arrester inserts are provided with appropriate solid edges, so that the flame arrester inserts in this case no longer have to be surrounded by an additional lateral housing.
  • the flame arrester inserts can easily be removed for servicing purposes after only, if appropriate, clamping screws for the axial clamping of housing parts have been loosened or removed.
  • the intermediate layer can be formed, for example, by a wire mesh, which merely serves as a spacer between the flame arrester inserts.
  • the intermediate layers can be joined to an associated flame arrester insert by spot welding, brazing and the like.
  • intermediate rings when intermediate rings are used between the radially outwardly fitted, preferably wound seals of the flame arrester inserts, it is possible to provide a corresponding joint between the intermediate layer and the associated intermediate ring, so that joint handling of the intermediate layer and intermediate ring is possible.
  • the present invention is preferably implemented with wound flame arrester inserts.
  • it can, of course, also be implemented with all other conventional flame arrester inserts, for example with flame arrester inserts made of sintered metal, metal foams, woven wire meshes, expanded metal meshes, porous ceramics, drilled plates of metal or plastic (in particular PTFE) or the like.
  • FIG. 1 shows a partial section through a flame arrester arrangement having four flame arrester inserts and four associated radial closed seals
  • FIG. 2 shows an arrangement analogous to FIG. 1 in which the radially closed seals are combined with intermediate sealing rings
  • FIGS. 2 a and 2 b show details of the fixing of the intermediate layers to the intermediate sealing rings
  • FIG. 3 shows a schematic illustration for a flame arrester arrangement having an axial seal running around the edge of the flame arrester inserts
  • FIG. 4 shows a plan view of an intermediate layer in the form of a wire mesh
  • FIG. 5 shows a schematic illustration of a flame arrester arrangement having three radially outer circumferential seals which close an axial flow path through a radially outer gap
  • FIG. 6 shows an arrangement according to FIG. 5 having a single radial seal on the central flame arrester insert
  • FIG. 7 shows an arrangement according to FIG. 5 having another embodiment of the radial seal
  • FIG. 8 shows an arrangement according to FIG. 6 having another embodiment of the radial seal
  • FIG. 9 shows an arrangement, similar to FIG. 1 , having a withdrawal device for a housing part in the form of a radially ribbed ring
  • FIG. 10 shows a schematic illustration of an arrangement of seven flame arrester inserts which have a circumferential solid edge
  • FIG. 11 shows variants of the arrangement according to FIG. 10
  • FIG. 12 shows a welded housing cage having an arrangement having in each case one radial seal for two flame arrester inserts and a modification of the arrangement having in each case one radial seal for one flame arrester insert.
  • FIG. 1 reveals a housing 1 having two flange-like housing parts 2 , 3 , which can be clamped axially to each other via clamping screws (not illustrated).
  • the flange-like housing parts 2 , 3 act on housing rings 4 , joined to them, between which four flame arrester inserts 6 each having an intermediate layer 7 are inserted axially.
  • the housing rings 4 , 5 have circumferential grooves 8 on their circumferential surface pointing radially outwards, into which sealing rings 9 in the form of O rings are inserted.
  • Pushed over the housing rings 4 , 5 is a cylindrical shell wall 10 which, with the sealing rings 9 , seals the space for the flame arrester inserts 6 .
  • the flame arrester inserts end radially at a distance from the cylindrical shell wall 10 and, on their outer side, are provided with closed seals 11 , the axial length of which corresponds to the sum of the axial lengths of flame arrester insert with associated intermediate layer 7 .
  • the clamping pressure for the axial clamping is exerted on the seals 11 resting on one another, which are thus pressed against one another over their axial lengths and therefore form a radial seal for the intermediate layers 7 .
  • the seals 11 are preferably formed by spiral turns of a metal strip with a width equal to the axial length of the seal 11 .
  • the wound assembly of turns for the seal 11 is chosen to be sufficiently large that the covering area F, i.e. the radial thickness of the seal 11 , is sufficiently large for the seals 11 to be able to absorb the clamping pressure.
  • the seals 11 have an axial length which corresponds to the axial length of the flame arrester inserts 6 .
  • intermediate sealing rings 13 are inserted between the seals 11 and ensure that the stack comprising seals 11 and intermediate sealing rings 13 has the same axial length as the flame arrester inserts 6 with the intermediate layers 7 .
  • FIG. 2 a makes it clear that a welded joint 14 is provided between the intermediate sealing ring 13 and the intermediate layer 7 , which is formed as a wire mesh, so that the intermediate layer 7 can be handled together with the intermediate sealing ring 13 .
  • welded joints 14 are located both between the intermediate layer 7 and the intermediate sealing ring 13 and between the seal 11 and the intermediate sealing ring 13 , so that the flame arrester insert 6 with the intermediate layer 7 joined to it by welded or brazed spots, the seal 11 and the intermediate sealing ring 13 form a component that can be handled as a single unit.
  • two flame arrester inserts 6 together with an intermediate layer 7 are clamped in between the housing rings 4 , 5 , the intermediate layer 7 having a radial extent which is somewhat smaller than the radial extent of the flame arrester inserts 6 .
  • a sealing ring 15 In the remaining radial edge region of the flame arrester inserts there is a sealing ring 15 as a flat metallic seal.
  • FIG. 4 shows in an elevation the design of the intermediate layer 7 , which in this case, in the form of a wire mesh, is joined integrally to the sealing ring 15 , for example by welding.
  • three flame arrester inserts 6 having intermediate layers 7 located between them are arranged, and clamped axially, between the housing rings 4 , 5 .
  • the cylindrical shell wall 10 here has three circumferential grooves 16 on its inside, into which there are inserted sealing rings 17 , which close the radially outer gap 12 in the axial direction for a flow through. Accordingly, although gas from the intermediate layer can enter the radially outer gap, it cannot flow externally around any of the flame arrester inserts 6 , since the axial passage is blocked by the sealing rings 17 .
  • FIG. 6 shows a similar arrangement, in which only the central flame arrester insert 6 is sealed radially to the outside by a sealing ring 17 .
  • This is sufficient if the housing rings 4 , 5 rest in a sealing manner on the radial edges of the outer flame arrester inserts 6 , so that flow around the outer flame arrester inserts 6 is already impossible as a result of the clamping of the outer flame arrester inserts 6 .
  • the sealing ring 17 therefore serves to prevent the flow around the central flame arrester insert 6 .
  • FIG. 7 shows an arrangement similar to FIG. 5 , in which the sealing rings 17 ′ are implemented not as flat sealing rings but as sealing rings having a circular cross section in the manner of an O ring.
  • FIG. 8 shows a corresponding modification to the embodiment according to FIG. 6 .
  • the embodiment of a flame arrester arrangement illustrated in FIG. 9 provides for a threaded bolt 18 to be screwed into the housing ring 5 , the bolt having its blunt end supported on one end of the cylindrical shell wall 10 .
  • the housing ring 5 preferably has a plurality of such threaded bolts 16 , which make disassembly of the flame arrester arrangement easier. This is because, by virtue of the threaded bolt 18 being screwed in, the housing ring 5 can be drawn off the cylindrical shell wall 10 by screwing, by which means the access to the arrangement comprising the flame arrester inserts 6 , the intermediate layers 7 and the seals 11 is freed. Since the outer radial gap 12 in relation to the cylindrical shell wall is provided, the flame arrester inserts 6 with the intermediate layers 7 and the seals 11 can be removed singly or jointly in a straightforward manner and cleaned or replaced for servicing purposes.
  • the flame arrester inserts 6 illustrated in the exemplary embodiments up to this point comprise spiral or concentric turns resting on one another, which each comprise a smooth metal strip and a corrugated metal strip.
  • the corrugated metal strip here is preferably implemented with corrugations which are inclined with respect to the longitudinal direction of the strip.
  • the oppositely directed running hatchings in the drawings here express the fact that, in order to even out the flow through the flame arrester inserts 6 , flame arrester inserts wound in different directions adjoin one another, so that the gas flows through the assembly of flame arrester inserts in the manner of a zigzag course, since the passage gaps caused by the corrugated strip run in different inclined directions.
  • the flame arrester inserts 6 ′ are provided with a circumferential solid edge 19 which, on one side, has a circumferential open groove to accommodate a seal 20 .
  • the housing rings 4 , 5 are provided with attachments 21 which have openings for a clamping screw 22 to be led through.
  • the clamping bolt 22 rests on one of the attachments 21 with a screw head 23 and on the other of the attachments 21 with a nut 24 surrounding the screw, so that, by means of a plurality of such clamping screws 22 distributed over the circumference, the housing rings 4 , 5 are pulled axially towards each other and clamp in between them the stack formed from the flame arrester inserts 6 ′.
  • each of the flame arrester inserts 6 ′ is stabilized by a bolt bored radially through them.
  • Such stabilization of flame arrester inserts 6 ′ is known in principle for large wound flame arrester inserts 6 ′.
  • FIG. 11 shows two variants of the embodiment of the clamping screw 22 in conjunction with the housing rings 4 , 5 in order to carry out the axial clamping.
  • the clamping screw extends through passage holes in the solid edges 19 of the flame arrester inserts 6 ′, which ensures additional alignment of the flame arrester inserts 6 ′.
  • FIG. 12 eight flame arrester inserts 6 are provided, which are arranged between housing rings 4 , 5 .
  • the cylindrical shell wall 10 is joined to the housing 1 by weld seams 26 .
  • the seals 11 ′ according to FIG. 12 a are designed with an axial length which corresponds to the sum of the axial lengths of two flame arrester inserts 6 and two intermediate layers 7 .
  • four closed seals 11 ′ are thus used, and these are clamped in between the housing rings 4 , 5 .
  • radial bolt sections 25 ′ are introduced, this preferably being done by spark erosion, while maintaining the defined passage gaps of the flame arrester inserts 6 .
  • the bolt sections 25 ′ extend only over a radial subregion, while the bolts 25 extend over the entire diameter of the flame arrester insert 6 ′.
  • FIG. 12 b makes it clear that the stabilization with the bolt sections 25 ′ is of course also possible when, as in FIG. 1 , the seals 11 have the axial length of only one flame arrester insert 6 with the associated intermediate layer 7 .

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gas Burners (AREA)
  • Gasket Seals (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US12/793,765 2009-06-09 2010-06-04 Flame arrester arrangement Active 2033-06-15 US8834153B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009024814 2009-06-09
DE102009024814A DE102009024814A1 (de) 2009-06-09 2009-06-09 Flammensperranordnung
DE102009024814.5 2009-06-09

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US20100311001A1 US20100311001A1 (en) 2010-12-09
US8834153B2 true US8834153B2 (en) 2014-09-16

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US (1) US8834153B2 (ko)
EP (1) EP2260906B1 (ko)
JP (1) JP5721968B2 (ko)
KR (1) KR101686245B1 (ko)
CN (1) CN101920080B (ko)
AU (1) AU2010202250B2 (ko)
BR (1) BRPI1001491B1 (ko)
CA (1) CA2706196C (ko)
DE (1) DE102009024814A1 (ko)
DK (1) DK2260906T3 (ko)
ES (1) ES2411685T3 (ko)
IL (1) IL206246A0 (ko)
PL (1) PL2260906T3 (ko)
TW (1) TWI571283B (ko)
ZA (1) ZA201004081B (ko)

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* Cited by examiner, † Cited by third party
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US11185727B2 (en) * 2016-09-16 2021-11-30 Cv Technology, Inc. System, apparatus and method for arresting propagation of a deflagration in a clean air return duct of an air-material separator
US11852152B2 (en) 2019-10-07 2023-12-26 The Gorman-Rupp Company Pin vent assembly

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CN105358916A (zh) 2013-07-15 2016-02-24 开利公司 用于与hvac/r系统一起使用的阻火器
KR101658080B1 (ko) * 2015-03-20 2016-09-21 주식회사 탑세이프 화염 차단 장치
KR101571708B1 (ko) * 2015-03-20 2015-11-26 주식회사 탑세이프 화염 차단 장치
US10054310B2 (en) 2016-01-20 2018-08-21 Burning Point, L.C. Fast-heating outdoor gas burner apparatus and method
CN109952471B (zh) * 2016-10-28 2021-05-14 金子产业株式会社 减速机构以及带减速机构的阻火器
DE102017112162A1 (de) * 2017-06-01 2018-12-06 R. Stahl Schaltgeräte GmbH Flammenschutzfilter
CN107339179A (zh) * 2017-07-27 2017-11-10 广州三业科技有限公司 旋流式阻火器
KR102122753B1 (ko) * 2018-10-23 2020-06-15 동방새환경엔지니어링(주) 가연성 가스의 역화방지장치
CN109596665A (zh) * 2018-12-10 2019-04-09 福州大学 无焰泄放模拟实验装置
US11833380B2 (en) * 2019-02-15 2023-12-05 Dwight Brooker Flame arrester/burner assembly with a multifarious element for preventing deflagrations and extended endurance burning time
DE102019112618A1 (de) * 2019-05-14 2020-11-19 R. Stahl Schaltgeräte GmbH Flammenschutzfilter
US11992721B2 (en) 2020-07-08 2024-05-28 Rosemount Inc. Flame arrester for process devices
CN113018731A (zh) * 2021-04-01 2021-06-25 孙祥淇 一种分散气流防爆炸的阻火器

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US5415233A (en) 1992-06-30 1995-05-16 Chem-Mech Flame arrestor apparatus
US6699035B2 (en) * 2001-09-06 2004-03-02 Enardo, Inc. Detonation flame arrestor including a spiral wound wedge wire screen for gases having a low MESG
AT7424U1 (de) 2003-11-04 2005-03-25 Ernst Ehrlich & Co Dipl Ing Detonationssicherung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1701805A (en) 1927-02-11 1929-02-12 Irwin L Dunn Explosion arrester
AT250544B (de) 1964-06-17 1966-11-10 Johann Ing Auer Rückschlagsicherung gegen den Durchtritt von Flammen in Leitungen für brennbare Flüssigkeiten oder Gase, insbesondere flüssige oder gasförmige Brenn- oder Treibstoffe
US5415233A (en) 1992-06-30 1995-05-16 Chem-Mech Flame arrestor apparatus
US6699035B2 (en) * 2001-09-06 2004-03-02 Enardo, Inc. Detonation flame arrestor including a spiral wound wedge wire screen for gases having a low MESG
AT7424U1 (de) 2003-11-04 2005-03-25 Ernst Ehrlich & Co Dipl Ing Detonationssicherung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11185727B2 (en) * 2016-09-16 2021-11-30 Cv Technology, Inc. System, apparatus and method for arresting propagation of a deflagration in a clean air return duct of an air-material separator
US11406852B2 (en) * 2016-09-16 2022-08-09 Cv Technology, Inc. System, apparatus and method for arresting propagation of a deflagration in a clean air return duct of an air-material separator
US11406854B2 (en) * 2016-09-16 2022-08-09 Cv Technology, Inc. System, apparatus and method for arresting propagation of a deflagration in a clean air return duct of an air-material separator
US11406853B2 (en) * 2016-09-16 2022-08-09 Cv Technology, Inc. System, apparatus and method for arresting propagation of a deflagration in a clean air return duct of an air-material separator
US11852152B2 (en) 2019-10-07 2023-12-26 The Gorman-Rupp Company Pin vent assembly

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CA2706196A1 (en) 2010-12-09
KR101686245B1 (ko) 2016-12-13
IL206246A0 (en) 2010-12-30
DK2260906T3 (da) 2013-07-08
JP2010284530A (ja) 2010-12-24
TW201043290A (en) 2010-12-16
BRPI1001491A2 (pt) 2011-07-26
AU2010202250A1 (en) 2010-12-23
CA2706196C (en) 2016-04-12
BRPI1001491B1 (pt) 2019-06-18
ZA201004081B (en) 2011-03-30
KR20100132458A (ko) 2010-12-17
TWI571283B (zh) 2017-02-21
DE102009024814A1 (de) 2010-12-16
EP2260906A1 (de) 2010-12-15
CN101920080B (zh) 2017-09-22
CN101920080A (zh) 2010-12-22
JP5721968B2 (ja) 2015-05-20
ES2411685T3 (es) 2013-07-08
PL2260906T3 (pl) 2013-09-30
EP2260906B1 (de) 2013-05-01
AU2010202250B2 (en) 2015-02-12
US20100311001A1 (en) 2010-12-09

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